This article helps you create and manage routing configuration for an ExpressRoute circuit in the Resource Manager deployment model using the Azure portal. You can also check the status of, update, or delete and de-provision peerings for an ExpressRoute circuit.


Prerequisites

Before you begin, follow the steps in Creating an Azure ExpressRoute circuit and connecting it to your Pureport Network to:

  • You must have an active ExpressRoute circuit 
  • You must have created the connection in the Pureport Console.
  • The ExpressRoute circuit must be in a provisioned and enabled state in order to configure Azure private peering.


Configuring Azure Private Peering

Confirm that you have the following items from the Pureport Console Connection Information:

  • The Peering Subnet of the Primary Gateway for this ExpressRoute connection in the Pureport Console.
  • The Peering Subnet of the Secondary Gateway for this ExpressRoute connection in the Pureport Console.
  • The Pureport ASN for this connection in the Pureport Console. The Primary and Secondary Gateways use the same ASN.
  • A BGP Password. This is also obtained in the Pureport Console in the connection information. The Password is identical for both Primary and Secondary Gateways.


Complete the following steps to configure Azure private peering for the circuit. 

Note: Refer to the Azure documentation site for additional information.

  1. In the Azure Portal, select the Azure Private peering row. 
  2. Complete the fields in the Private peering window with the information provided from the Pureport Console, plus the VLAN ID field:
    • Peer ASN: enter the Pureport ASN, 394351, from the Pureport console
    • Primary Subnet: enter the Peering Subnet of the Primary Gateway from the Pureport console
    • Secondary Subnet: enter the Peering Subnet of the Secondary Gateway from the Pureport console
    • VLAN ID: Enter 100.
    • Shared key: Enter the connection Password from the Pureport Console.
  3. After entering the information from the Pureport Console, save the configuration.
    The Azure portal will show your new configuration:


To update or delete a peering configuration, please see the Azure documentation site.


Final step:

From here you will move on to Link an Azure virtual network to an Expressroute circuit

For complete information, see:  https://docs.microsoft.com/en-us/azure/expressroute/expressroute-howto-linkvnet-portal-resource-manager.